[Bug] can not runandroid_rpc_test.py

[chayliu1991]

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Expected behavior

What you were expecting

Actual behavior

What actually happened

Environment

I create my own docker image from ubuntu 18.04,build the tvm from the source code.
I pull the code by:
git clone --recursive https://github.com/apache/tvm tvm

Any environment details, such as: Operating System, TVM version, etc

Steps to reproduce

It is in a docker environment,after compile android app and install it on my android phone.
run with the following steps:

1.python3 -m tvm.exec.rpc_tracker --host=0.0.0.0 --port=9190
INFO:RPCTracker:bind to 0.0.0.0:9190

2.python -m tvm.exec.query_rpc_tracker --port 9190
Tracker address 0.0.0.0:9190

Server List
------------------------------
server-address           key
------------------------------
   10.166.29.147:5001    server:android
------------------------------

Queue Status
-------------------------------
key       total  free  pending
-------------------------------
android   1      0     1
-------------------------------

3.python3 android_rpc_test.py

but it can not connect to the phone and print some result,after a lot of seconds waiting,it throw an exception：

Traceback (most recent call last):
  File "android_rpc_test.py", line 137, in <module>
    test_rpc_module()
  File "android_rpc_test.py", line 64, in test_rpc_module
    remote = tracker.request(key, priority=0, session_timeout=20)
  File "/opt/tvm/python/tvm/rpc/client.py", line 417, in request
    "Cannot request %s after %d retry, last_error:%s" % (key, max_retry, str(last_err))
RuntimeError: Cannot request android after 5 retry, last_error:Traceback (most recent call last):
  3: TVMFuncCall
  2: tvm::runtime::PackedFuncObj::Extractor<tvm::runtime::PackedFuncSubObj<tvm::runtime::{lambda(tvm::runtime::TVMArgs, tvm::runtime::TVMRetValue*)#1}> >::Call(tvm::runtime::PackedFuncObj const*, tvm::runtime::TVMArgs, tvm::runtime::TVMRetValue*)
  1: tvm::runtime::RPCClientConnect(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, tvm::runtime::TVMArgs)
  0: tvm::runtime::RPCConnect(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, tvm::runtime::TVMArgs)
  File "/opt/tvm/src/runtime/rpc/rpc_socket_impl.cc", line 72
TVMError:
---------------------------------------------------------------
An error occurred during the execution of TVM.
For more information, please see: https://tvm.apache.org/docs/errors.html
---------------------------------------------------------------
  Check failed: (sock.Connect(addr)) is false: Connect to 10.166.29.147:5001 failed
root@0eec9746c3eb:/opt/tvm/apps/android_rpc/tests#

Preferably a minimal script to cause the issue to occur.